1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
BlackZzzverrR [31]
2 years ago
13

For the function -2x²+x+1 find f(3)

Mathematics
2 answers:
jenyasd209 [6]2 years ago
6 0

Answer:

f(3) = -14

Step-by-step explanation:

f(x)=-2x^{2} +x+1\\f(3)=-2(3)^2+3+1\\f(3) = -2(9)+4\\f(3) = -18+4\\f(3) = -14

nexus9112 [7]2 years ago
3 0

Answer:

-14

Step-by-step explanation:

Plug 3 in for x

-2 (3)² + 3 + 1

-2 (9) + 3 + 1

-18 + 3 + 1

-14

You might be interested in
If bacteria took 20 minutes to double from 2 to 4, how many bacteria would there be after 1 hour
iren2701 [21]
4 * 2 * 2 * 2 = 32 bacteria

Hope it helps!
3 0
3 years ago
Read 2 more answers
CHEGG The accompanying observations are precipitation values during March over a 30-year period in Minneapolis-St. Paul. 0.32, 0
Marina86 [1]

Answer:

Mean 1.580666667 1.769333333

Standard Deviation 0.890741799 1.123161779

Step-by-step explanation:

When we run the commands in the R software we get the graphs as follows.

The commands were

qqnorm(c(0.32,0.52,0.77,0.81,0.96,1.2,1.31,1.43,1.62,1.87,1.95,2.1,2.48,3,3.37))

and

qqnorm(c(0.47,0.59,0.81,0.9,1.18,1.2,1.35,1.51,1.74,1.89,2.05,2.2,2.81,3.09,4.75))

We can plot the graphs in any other plotting software .

The results would be same .

We see there's a slight difference between the two graphs.

One curve goes above ( Minneapolis) for  0.4 and the other ( for St Paul) is below 0.4

5 0
3 years ago
A right triangle is labeled with the hypotenuse 12m and an acute angle 23 degree
IgorLugansk [536]

Answer:

sin23= x/12

sin23(12)=x

0.391(12)=x

x=4.7 or 5

3 0
3 years ago
A student spends no more than 2 hours on his math and english homework. If math takes about twice as long as english, what is th
Oduvanchick [21]
1hr 20 minutes or 80 minutes
8 0
2 years ago
Read 2 more answers
Need help with this didn’t understand it
zaharov [31]

Answer:

Ok, the solution to the first one. See below.

Step-by-step explanation:

1>3-d\\\\\mathrm{Add\:}d\mathrm{\:to\:both\:sides}\\\\1+d>3-d+d\\\\\mathrm{Simplify:}\\\\1+d>3\\\\\mathrm{Subtract\:}1\mathrm{\:from\:both\:sides}\\\\1+d-1>3-1\\\\\mathrm{Simplify:}\\\\d>2

See attachment below.

Best Regards!

6 0
3 years ago
Other questions:
  • A soccer field is a rectangle 90 meters wide and 120 meters long. the coach asks the player to run from one corner to the corner
    13·1 answer
  • The graph shows a vertical translation of y =<img src="https://tex.z-dn.net/?f=%5Csqrt%5B3%5D%7Bx%7D" id="TexFormula1" title="\s
    14·1 answer
  • Explain in steps please
    15·1 answer
  • What is the purpose of Australians paying tax?
    15·2 answers
  • SOMEBODY PLEASE HELP ME! IM BEGGING YOU! I MIGHT FAIL ALGEBRA 1 AND HAVE TO REDO 8TH GRADE!! PLEASE JUST HELP ME!!!
    13·1 answer
  • Please help! Brainliest
    9·1 answer
  • Kesha purchased begin mathsize 16px style 3 1 half end style gallons of paint for her house. If each bucket that Kesha has holds
    5·1 answer
  • Help please I’ll give brainlest
    9·1 answer
  • Find the measure of angle 1
    6·1 answer
  • If we suppose that the volume of Lake Rason is approximately 2.56 x 10^5 km^3 and Lake Rason is 20 times the volume of Lake Rush
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!